Finding the Third Proportional to 647,136 and 979,753

Step by Step Solution

1. Step 1: Write the proportion equation
   647,136 : 979,753 = 979,753 : x
2. Step 2: Convert to fraction form
   647,136/979,753 = 979,753/x
3. Step 3: Cross multiply
   647,136x = 979,753 × 979,753
4. Step 4: Simplify right side
   647,136x = 959,915,941,009
5. Step 5: Solve for x
   x = 959,915,941,009/647,136
6. Step 6: Final answer
   x = 1,483,329.53